We are eating dinner at the table.为什么要用at?

We are eating dinner at the table.为什么要用at? We are eating dinner _____ the table .用 at 还是用 on ,为什么? We eat our dinner at the table. at the dinner table Look at the [man] .They are eating dinner. We set a place for blame at the dinner table. we set a place for blame at the dinner table They are eating dinner now (用at six in the evening 改写） John is h______ dinner at the table. 1.I’m swimming at school.（where） 2.We are eating dinner.（wha it's time for dinner.｛ ｝kings are at｛ ｝table A./；the B.the；t Are you eating dinner at home Yes,I ---(be)